Around here, I use my part time (Dana 300) 4wd only when the roads are fully ice/snow covered. I know that dry pavement can kill the t-case. However, is it safe to use on roads that are mixed slush covered, wet pavement, snow cover? How much dry pavement does it take to bind a T-case? If I am cruising along and hit a patch of 300' dry pavement, will the rig grenade???

I don't think that 300 feet will do anything to the T-case. Turning the vehicle on dry pavement while in 4wd may. With part time 4wd set ups the tires can spin at different speeds while turning. Full time 4wd rigs don't have this issue. This isn't much of an issue while off road due to the tires not being able to grab the surface as well as they would on a dry road. So, as far as hitting a dry patch of road in the snow I wouldn't worry too much about it. Nor would a turn here or there cause too much of an issue. I just wouldn't keep in four wheel drive when it is just a little wet out there.

I see that you are in Indiana, did you get the same ice storm that we had here in Illinois?

Just switch to 2hi for the dry section then back to 4 hi when you get to snow/ice covered. A little practice and it becomes almost second nature, just like shifting gears. Good Luck, it's Sunny and 81* here

Just switch to 2hi for the dry section then back to 4 hi when you get to snow/ice covered. A little practice and it becomes almost second nature, just like shifting gears. Good Luck, it's Sunny and 81* here

Back in 1978 when my CJ-7 was still pretty new I drove 20 miles to home with the D20 in 4wd.
I drove it with the D20 for another 25 years without any problems before I swapped in the D300.
Your mileage may vary and no cold beer was involved on that occasion.

as on the other forum page it wont die even if the pavement is dry not for short periods of time just dont be goin 80 lol that prolly not even posible but lower speeds in 4wd hi wont kill a tcase now if you are makin bunch of u turns i may switch out of it but other than that mild turns wont hurt you or even stretches of just moist road. but good luck

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If you get stuck it better be broke or you didnt hit it hard enough

X2. Simply leave the hubs locked in and pop the t case in and out as needed.

This is what I typically do. However, I have to reach for the 4wd shifter and don't want to do it 50+ times for a drive home (as I drive this daily).

As far as making the shift easier. If you accelerate as you shift into 4wd and decelerate as you shift back into 2wd it makes it significantly easier to shift. The decelerate is not simply a lifting your foot off the gas...more like goosing the gas and as you are letting off of the gas, shift...

As far as the ice storm. Yes, we got hit. Fortunately, not as bad as friends further north. Our ice was followed by rain a few hours later and the rain got rid of all the ice...